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某摩擦摆隔震框架结构地震反应分析
引用本文:龚健,周云,邓雪松.某摩擦摆隔震框架结构地震反应分析[J].土木工程学报,2012(Z2):146-150.
作者姓名:龚健  周云  邓雪松
作者单位:广东省建筑设计研究院;广州大学
基金项目:广东省自然科学基金研究团队项目资助(8351009101000001)
摘    要:介绍摩擦摆隔震支座的基本原理,采用可考虑动轴力和双方向耦合的FP模型建立摩擦摆隔震框架结构,分别用ETABS、SAP2000和MIDAS三个软件对摩擦摆隔震框架结构及其对应的非隔震框架结构进行模态分析、反应谱分析以及动力时程分析。结果表明:安装摩擦摆隔震支座能有效地控制位移、加速度和基底剪力等地震反应,削减构件内力;相比于多遇地震,罕遇地震下支座耗能性能得到更充分的发挥、结构响应降幅明显,减震效果更为理想。

关 键 词:摩擦摆隔震支座  隔震  地震反应  耗能  减震

Seismic response analysis of a FPB isolated frame structure
Gong Jian,Zhou Yun,Deng Xuesong.Seismic response analysis of a FPB isolated frame structure[J].China Civil Engineering Journal,2012(Z2):146-150.
Authors:Gong Jian  Zhou Yun  Deng Xuesong
Affiliation:1.The Architectural Design & Research Institute of Guangdong Province,Guangzhou 510010,China; 2.Guangzhou University,Guangzhou 510006,China)
Abstract:The basic principle of friction pendulum bearing(FPB) is introduced,FPB isolated frame structure models are built by adopting the FP model considering the dynamic axial force and biaxial effect,modal analysis,response spectrum analysis and time history analysis of FPB isolated and non-isolated frame structures are conducted in ETABS,SAP2000 and MIDAS.Results show that: installing FPB can effectively control the seismic response of structure,including displacement,acceleration,base shear,etc.,internal forces of structural members are reduced.The hysteretic energy dissipation behavior of FPB under rare earthquake is performed into fuller play than that under conventional earthquake,the decreasing amplitude of structural response is obvious,and the seismic reduction effect is more ideal.
Keywords:friction pendulum bearing  seismic isolation  seismic response  energy dissipation  seismic reduction
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